5 Replies Latest reply: Jan 2, 2012 2:42 PM by Craig Greenhalgh RSS

JSONException in RPC part 2

Pol Patric Newbie

Hello,

When I receive a message on the client I have a Exception:

 

[ERROR] com.google.gwt.json.client.JSONException: Error parsing JSON: SyntaxError: JSON.parse: bad control character in string literal
[ERROR]         at com.google.gwt.json.client.JSONParser.throwJSONException(JSONParser.java:91)
[ERROR]         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR]         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[ERROR]         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERROR]         at java.lang.reflect.Method.invoke(Method.java:597)
[ERROR]         at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
[ERROR]         at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
[ERROR]         at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:167)
[ERROR]         at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:326)
[ERROR]         at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:207)
[ERROR]         at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:132)
[ERROR]         at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561)
[ERROR]         at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:269)
[ERROR]         at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
[ERROR]         at com.google.gwt.json.client.JSONParser.evaluate(JSONParser.java)
[ERROR]         at com.google.gwt.json.client.JSONParser.parse(JSONParser.java:218)
[ERROR]         at com.google.gwt.json.client.JSONParser.parseStrict(JSONParser.java:87)
[ERROR]         at org.jboss.errai.bus.client.json.JSONUtilCli.decodePayload(JSONUtilCli.java:48)
[ERROR]         at org.jboss.errai.bus.client.framework.ClientMessageBusImpl.procIncomingPayload(ClientMessageBusImpl.java:1158)
[ERROR]         at org.jboss.errai.bus.client.framework.ClientMessageBusImpl.access$7(ClientMessageBusImpl.java:1156)
[ERROR]         at org.jboss.errai.bus.client.framework.ClientMessageBusImpl$LongPollRequestCallback.onResponseReceived(ClientMessageBusImpl.java:993)
[ERROR]         at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:287)
[ERROR]         at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:395)
[ERROR]         at sun.reflect.GeneratedMethodAccessor26.invoke(Unknown Source)
[ERROR]         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERROR]         at java.lang.reflect.Method.invoke(Method.java:597)
[ERROR]         at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
[ERROR]         at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
[ERROR]         at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:167)
[ERROR]         at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:326)
[ERROR]         at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:207)
[ERROR]         at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:132)
[ERROR]         at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561)
[ERROR]         at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:269)
[ERROR]         at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
[ERROR]         at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
[ERROR]         at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:214)
[ERROR]         at sun.reflect.GeneratedMethodAccessor24.invoke(Unknown Source)
[ERROR]         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERROR]         at java.lang.reflect.Method.invoke(Method.java:597)
[ERROR]         at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
[ERROR]         at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
[ERROR]         at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:167)
[ERROR]         at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:281)
[ERROR]         at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:531)
[ERROR]         at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:352)
[ERROR]         at java.lang.Thread.run(Thread.java:662)

 

this is my code on Server side:

 

public String getPing(String result) {
      String line = null;
        try {
              Process p = Runtime.getRuntime().exec("ping -n 1 " + result);
              BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
              while ((line = input.readLine()) != null) {
                  //System.out.println(line);
                  result = line + "\n";
              }
              input.close();

        } catch (Exception err) {
              err.printStackTrace();
              return "ErrorPwList";
          }
        return result;
    }

 

and Client:

 

        sendButton3.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent clickEvent) {
                MessageBuilder.createCall(new RemoteCallback<String>() {
                    public void callback(String response) {

                        // Run popup dialog box
                        sendButton3.setEnabled(false);
                        dialogBox.setText("RPC - Success");
                        dialogBox.center();
                        //window.centerInPage();
                        closeButton.setFocus(true);

                        textToServerLabel.setText(response);
                    }
                }, RPCTestService.class).getPing(nameField3.getText());
            }
        });

 

Is this a bug?

Thanks for your help.

 

Greetings,

Patric